Meteor: Hot Code Push broken on Android in production

Question

Edit: It works on iOS, the problem is therefore limited to Android.

I just found out, that in my Meteor production app, Hot Code Push is broken. I don't know when it started to occur, but here are the facts (in no particular order):

• When I upload new binaries to Google Play/iOS App Store a new version is downloaded by all devices
• When I update the server only, the Android App does not update, even when manually forcing a window.location.reload() in the app.
• After the server update, in the browser the app reloads as it should be (to the new version)
• https://myapp.com/__cordova/manifest.json is served as it should be
• I am using mup 1.3.5 on the server
• In development mode (on localhost) Hot Code Push works perfectly

• When using git checkout on an older commit and building the app locally via meteor run android-device --mobile-server https://myapp.com I can see the following console output:

              Download failure
   com.meteor.webapp.WebAppException: Error downloading asset manifest
      at com.meteor.webapp.AssetBundleManager$1.onFailure(AssetBundleManager.java:97)
      at okhttp3.RealCall$AsyncCall.execute(RealCall.java:140)
      at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
      at java.lang.Thread.run(Thread.java:818)
   Caused by: java.net.ProtocolException: Expected ':status' header not present
      at okhttp3.internal.http.Http2xStream.readHttp2HeadersList(Http2xStream.java:266)
      at okhttp3.internal.http.Http2xStream.readResponseHeaders(Http2xStream.java:149)
      at okhttp3.internal.http.HttpEngine.readNetworkResponse(HttpEngine.java:723)
      at okhttp3.internal.http.HttpEngine.access$200(HttpEngine.java:81)
      at okhttp3.internal.http.HttpEngine$NetworkInterceptorChain.proceed(HttpEngine.java:708)
      at okhttp3.internal.http.HttpEngine.readResponse(HttpEngine.java:563)
      at okhttp3.RealCall.getResponse(RealCall.java:241)
      at okhttp3.RealCall$ApplicationInterceptorChain.proceed(RealCall.java:198)
      at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:160)
      at okhttp3.RealCall.access$100(RealCall.java:30)
      at okhttp3.RealCall$AsyncCall.execute(RealCall.java:127)
      ... 4 more
   Download failure
   com.meteor.webapp.WebAppException: Error downloading asset manifest
      at com.meteor.webapp.AssetBundleManager$1.onFailure(AssetBundleManager.java:97)
      at okhttp3.RealCall$AsyncCall.execute(RealCall.java:140)
      at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
      at java.lang.Thread.run(Thread.java:818)
   Caused by: java.net.ProtocolException: Expected ':status' header not present
      at okhttp3.internal.http.Http2xStream.readHttp2HeadersList(Http2xStream.java:266)
      at okhttp3.internal.http.Http2xStream.readResponseHeaders(Http2xStream.java:149)
      at okhttp3.internal.http.HttpEngine.readNetworkResponse(HttpEngine.java:723)
      at okhttp3.internal.http.HttpEngine.access$200(HttpEngine.java:81)
      at okhttp3.internal.http.HttpEngine$NetworkInterceptorChain.proceed(HttpEngine.java:708)
      at okhttp3.internal.http.HttpEngine.readResponse(HttpEngine.java:563)
      at okhttp3.RealCall.getResponse(RealCall.java:241)
      at okhttp3.RealCall$ApplicationInterceptorChain.proceed(RealCall.java:198)
      at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:160)
      at okhttp3.RealCall.access$100(RealCall.java:30)
      at okhttp3.RealCall$AsyncCall.execute(RealCall.java:127)
      ... 4 more
    "Error: Error downloading asset manifest", source: http://localhost:12128/packages/webapp.js?hash=e448c6ebb2384292f7c97e676471a51951a04169 (71)
  

This suggests that some kind of :status header is missing for the asset manifest. How can I fix this?

Answer 1

I had this exact same problem with the same console error logs. Using Meteor 1.6.1 and mup 1.4.3. In the end I fixed it by upgrading the cordova-plugin-meteor-webapp with:

meteor add cordova:cordova-plugin-meteor-webapp@1.6.0

and then redeploying. Then hot code push worked on Android!

Edit: To give more background - I think the problem is caused by a problem with okhttp and HTTP/2 on certain version of nginx. See this question. The updated cordova-plugin-meteor-webapp plugin uses a newer version of okhttp.